Jawabanmu

2014-08-15T22:33:29+07:00
B. 3y+5y=12
5y=12
y=12-5
y=7
a. xy=2-12
10
klo gx salah
2014-08-15T23:20:44+07:00
B. 2y + 3y = 12
5y = 12
y  = 12 / 5
y  = 2,4